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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Reading Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The Met Office forecast for St Austell shows the live conditions above, with today’s outlook shaped by the town’s coastal position on St Austell Bay, bringing milder temperatures and a higher chance of sea breezes compared to inland Cornwall.
What does the Met Office forecast mean for St Austell today?
The live forecast above gives you the immediate picture, but St Austell’s weather often hinges on the direction of the wind. A south-westerly flow, common here, can push cloud and drizzle off the Atlantic, while a north-easterly tends to bring clearer, drier spells. The Met Office’s local model accounts for the sheltering effect of the surrounding hills, so you might find the town centre slightly calmer than the exposed Eden Project area a few miles away.
How reliable is the Met Office forecast for St Austell?
For the next 24 to 48 hours, the Met Office’s high-resolution model is very dependable for St Austell, especially for temperature and wind direction. Beyond three days, confidence drops as Atlantic weather systems become harder to pin down. Always check the live forecast above on the morning of your plans, as coastal showers can develop quickly.
Does the Met Office issue warnings for St Austell?
Yes. The Met Office issues yellow, amber or red weather warnings for the whole of Cornwall, including St Austell. These cover wind, rain, snow and ice. You can see active warnings on the live forecast above or on the Met Office website.
Why is St Austell often cloudier than inland Cornwall?
St Austell’s position on the south coast means it catches moist air from the English Channel. This often produces low cloud and drizzle, especially in spring and autumn, while inland areas like Bodmin Moor stay brighter.
Is the Met Office forecast for St Austell updated hourly?
The Met Office updates its local forecast for St Austell at least every three hours, with more frequent updates during active weather. The live forecast above refreshes automatically to show the latest data.
Sources
For a broader look at conditions across the country, visit our UK weather hub or check the 10 day weather forecast UK for your area.